CN205071011U - Simulation of full duplex radio communication is from interference elimination device - Google Patents
Simulation of full duplex radio communication is from interference elimination device Download PDFInfo
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- CN205071011U CN205071011U CN201520834475.0U CN201520834475U CN205071011U CN 205071011 U CN205071011 U CN 205071011U CN 201520834475 U CN201520834475 U CN 201520834475U CN 205071011 U CN205071011 U CN 205071011U
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Abstract
The utility model provides a simulation of full duplex radio communication is from interference elimination device can realize throughput's multiplication. The device includes: the antenna for send and receive signals, the ware is divided to the merit for to launch the signal and fall into two the tunnel, the first via inserts radio frequency switching module, and send behind the circulator on the second way, the circulator for the pair emission link is kept apart with the signal of receiving the link, and with received signal transmission to radio frequency switching module, radio frequency switching module for eliminate the received signal that the receipt link of its transmitting chain coupled signal who corresponds the antenna and self antenna was sent to the module to appointed simulation, and receiving mold plans eliminating the signal of module output, the module is eliminated in the simulation for eliminate interfering signal, the control mainboard is used for connecting radio frequency switching module eliminates the module with the simulation to control command is right in output radio frequency switching module eliminates the module with the simulation and controls. The utility model is suitable for the communication technology field.
Description
Technical field
The utility model relates to communication technical field, refers to a kind of Full-duplex wireless communications simulation self-interference cancellation element especially.
Background technology
Along with the development of mobile communication technology, data service exponentially increases, and channel capacity and the spectrum efficiency of wireless network all urgently promote.But existing radio communication device all uses the semiduplex mode such as time division duplex or Frequency Division Duplexing (FDD) to realize transmission and the reception of data usually, can not realize receiving and dispatching while same frequency range, result in the significant wastage of frequency spectrum resource.Full-duplex mode simultaneously with frequency receiving and transmitting signal, compared to frequency division duplex system, can improve the spectrum efficiency of radio communication device.Compared to tdd systems, can be similar to and realize channel capacity multiplication.But the power of (i.e. self-interference) power much larger than the useful signal received that transmits from equipment its own transmission antenna that full duplex equipment receives, self-interference signal has had a strong impact on the device performance of full duplex device.
At existing multiple antennas simultaneously with in transmitting-receiving full duplex device frequently, antenna is divided into transmitting antenna and reception antenna, and the antenna of half quantity is only used for transmitting, and the antenna of second half quantity is only used for Received signal strength.If main aerial number is N, then the maximum receiving-transmitting chain number of this device is N/2; The full duplex device that this dual-mode antenna is separated causes the data throughout of whole equipment to reduce by half.
In addition, the unitary design of existing Full-Duplex Analog self-interference cancellation element many employings single circuit plate, can not adjust the quantity of antenna and simulation cancellation module, and circuit footprint is huge, its extensibility and practicality are all poor.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of Full-duplex wireless communications simulation self-interference cancellation element, the problem that the full duplex device being separated mode with the employing dual-mode antenna solved existing for prior art causes the data throughout of whole equipment to reduce by half.
For solving the problems of the technologies described above, the utility model embodiment provides a kind of Full-duplex wireless communications to simulate self-interference cancellation element, comprising: antenna, power splitter, circulator, radio frequency exchange module, simulation cancellation module and control mainboard;
Described antenna, for transmitting and Received signal strength;
Described power splitter, for when transmitting a signal, is divided into two-way by described transmitting, and by first via signal access radio frequency exchange module, the second road signal is launched by described antenna after described circulator;
Described circulator, for tentatively isolating the signal of transmitting chain and receiver, and is sent to described radio frequency exchange module by the signal that described antenna receives;
Described radio frequency exchange module, for sending the Received signal strength of the transmitting chain coupled signal of this simulation cancellation module respective antenna and the receiver of its own antenna to the simulation cancellation module of specifying, and receive signal that described simulation cancellation module exports for follow-up simulation cancellation module or directly export;
Described simulation cancellation module, for the Received signal strength of the transmitting chain coupled signal that will receive and receiver as input, eliminates the self-interference signal of its own antenna or the interference signal of other antennas to this antenna;
Described control mainboard, for connect described radio frequency exchange module with simulation cancellation module, and export control command to described radio frequency exchange module and simulation cancellation module control.
Further, when antenna is N root, all corresponding N number of simulation cancellation module of every root antenna, described device comprises N*N simulation cancellation module;
Simulation cancellation module C
mn, for using the Received signal strength of the transmitting chain coupled signal of antenna m and the receiver of antenna n as input, to eliminate the interference signal of antenna m to antenna n, wherein, m is 1,2 ..., N-1, N, n are 1,2 ..., N-1, N.
Further, the work period of described device comprises: cycle of training and data transfer cycle;
When the quantity of antenna is N, comprise N number of training time slot each cycle of training, the corresponding antenna of each training time slot;
In cycle of training, every root antenna receives and dispatches training sequence to train time slot in turn for splitting, in each training time slot, have and only have an antenna transmitting-receiving training sequence, other antennas only received training sequence, wherein, receive and dispatch training sequence comprise: send training sequence and receive its own antenna send described training sequence;
At data transfer cycle, all antennas of described device are all at same frequency receiving and transmitting signal simultaneously.
Further, in the training time slot i that antenna i is corresponding, described radio frequency exchange module, also for opening simulation cancellation module C
in, and close simulation cancellation module C
jn, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j, and n is 1,2 ..., N-1, N.
Further, in the training time slot i that antenna i is corresponding, described radio frequency exchange module, the Received signal strength also for the transmitting chain coupled signal of control antenna i and the receiver of antenna j enters simulation cancellation module C corresponding to antenna j
ij.Wherein, i is less than or equal to N, and j is less than or equal to N.
Further, in the training time slot i that antenna i is corresponding, antenna i receives and dispatches training sequence, simulation cancellation module C
iithe self-interference obtaining antenna i eliminates parameter; The training sequence that antenna j reception antenna i sends, simulation cancellation module C
ijobtain the interference cancellation parameters of antenna i to antenna j, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j.
Further, at data transfer cycle, described radio frequency exchange module, also for opening all simulation cancellation modules;
At data transfer cycle, described simulation cancellation module, also eliminate its own antenna self-interference signal for eliminating parameter according to the self-interference obtained in cycle of training, or eliminate the interference signal between this antenna and other antennas according to the interference cancellation parameters between the antenna obtained in cycle of training.
Further, at data transfer cycle, described radio frequency exchange module, the Received signal strength also for the transmitting chain coupled signal of control antenna n and the receiver of antenna i enters simulation cancellation module C corresponding to antenna i
ni, and receive simulation cancellation module C
nithe signal exported is for follow-up simulation cancellation module or directly export; Or,
Described radio frequency exchange module, the Received signal strength also for the receiver of control antenna i skips simulation cancellation module C corresponding to antenna j
nj, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j, and n is 1,2 ..., N-1, N.
Described control mainboard comprises: programmable master control chip and golden finger slot;
Described programmable master control chip, open or close specific simulation cancellation module and control the access of described radio frequency exchange module specifically simulate cancellation module for exporting control command, and control described simulation cancellation module to the self-interference signal of its own antenna or other antennas the interference signal to this antenna eliminate;
The function of described radio frequency exchange module is subject to the program control of main control chip;
The interference cancellation algorithm of described simulation cancellation module and the function such as data acquisition and detection are subject to the program control of main control chip; Be connected by golden finger slot form between described radio frequency exchange module with described control mainboard; Or,
Be connected by golden finger slot form between described simulation cancellation module with described control mainboard;
When antenna is N root, the quantity inserting the simulation cancellation module of described control mainboard golden finger slot is N*N, and described N is positive integer.
Further, be connected by RF cable between described radio frequency exchange module with described simulation cancellation module;
Described radio frequency exchange module is perpendicular to described control mainboard; Or,
Described simulation cancellation module is perpendicular to described control mainboard.
The beneficial effect of technique scheme of the present utility model is as follows:
In such scheme, the self-interference signal that its own antenna signal transmitting and receiving brings can not only be eliminated by simulation cancellation module, the inter-antenna interference that the Signal transmissions due to other antennas brings can also be eliminated, and every root antenna can use same frequency to carry out sending and receiving simultaneously, compared to traditional frequency division duplex system, the availability of frequency spectrum can be promoted greatly; Compared to traditional tdd systems, the multiplication realizing channel capacity can be similar to; The full duplex scheme that existing dual-mode antenna is separated, the antenna of half quantity can only be utilized to carry out signal transmission, the antenna of second half quantity carries out Signal reception, thus the receiving-transmitting chain number of whole system reduces half, and the space diversity gain that the full duplex scheme that the utility model proposes obtains is the twice that dual-mode antenna is separated scheme with data throughout.
In addition, in such scheme, device can adjust according to the number of antenna the quantity inserting the simulation cancellation module controlling mainboard golden finger slot.Thus, the full duplex scheme that the utility model proposes is not only applicable to single antenna scene, is applicable to the multiple antennas scene of different antennae quantity yet, has very high autgmentability; The simulation cancellation module of this device and radio frequency exchange module are all perpendicular to control mainboard, and thus this device is intended eliminating design compared to existing single circuit template die, greatly can save area occupied.
Accompanying drawing explanation
The structural representation of the Full-duplex wireless communications simulation self-interference cancellation element that Fig. 1 provides for the utility model embodiment;
The working timing figure that Fig. 2 provides for the utility model embodiment.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The problem that the full duplex device that the utility model is separated mode for existing employing dual-mode antenna causes the data throughout of whole equipment to reduce by half, provides a kind of Full-duplex wireless communications to simulate self-interference cancellation element.
Be illustrated in figure 1 a kind of Full-duplex wireless communications simulation self-interference cancellation element that the utility model embodiment provides, comprise: antenna, power splitter, circulator, radio frequency exchange module, simulation cancellation module and control mainboard.
Described antenna, for transmitting and Received signal strength;
Described power splitter, for when transmitting a signal, is divided into two-way by described transmitting, and by first via signal access radio frequency exchange module, the second road signal is launched by described antenna after described circulator;
Described circulator, for tentatively isolating the signal of transmitting chain and receiver, and is sent to described radio frequency exchange module by the signal that described antenna receives;
Described radio frequency exchange module, for sending the Received signal strength of the transmitting chain coupled signal of this simulation cancellation module respective antenna and the receiver of its own antenna to the simulation cancellation module of specifying, and receive signal that described simulation cancellation module exports for follow-up simulation cancellation module or directly export;
Described simulation cancellation module, for the Received signal strength of the transmitting chain coupled signal that will receive and receiver as input, eliminates the self-interference signal of its own antenna or the interference signal of other antennas to this antenna;
Described control mainboard, for connect described radio frequency exchange module with simulation cancellation module, and export control command to described radio frequency exchange module and simulation cancellation module control.
Full-duplex wireless communications simulation self-interference cancellation element described in the utility model embodiment, the self-interference signal that its own antenna signal transmitting and receiving brings can not only be eliminated by simulation cancellation module, the inter-antenna interference that the Signal transmissions due to other antennas brings can also be eliminated, and every root antenna can use same frequency to carry out sending and receiving simultaneously, compared to traditional frequency division duplex system, the availability of frequency spectrum can be promoted greatly; Compared to traditional tdd systems, the multiplication realizing channel capacity can be similar to; The full duplex scheme that existing dual-mode antenna is separated, the antenna of half quantity can only be utilized to carry out signal transmission, the antenna of second half quantity carries out Signal reception, thus the receiving-transmitting chain number of whole system reduces half, and the space diversity gain that the full duplex scheme that the utility model proposes obtains is all twices that dual-mode antenna is separated scheme with data throughout.
In the utility model embodiment, can be decayed self-interference signal by described circulator.
In the utility model embodiment, antenna can be many, and every root antenna can as dual-mode antenna, and the receiving and transmitting signal of every root antenna all sends into radio frequency exchange module.Concrete, every root antenna is all equipped with a radio frequency transmissions input interface, when transmitting, for introducing transmitting of transmitter, transmitting will be able to transmit through a power splitter is divided into two paths of signals, one road signal gives radio frequency exchange module, offsets signal to pass to specific simulation cancellation module for building; Another road signal enters antenna through circulator and launches; During Received signal strength, the signal that every root antenna receives can access radio frequency exchange module after circulator, then passes to specific simulation cancellation module and carry out self-interference signal elimination.
In the utility model embodiment, as shown in Figure 1, plate is eliminated in the corresponding simulation of each simulation cancellation module, all simulations are eliminated plate and are all adopted identical design, riches all the way penetrates link couples signal and the pending Received signal strength of a road receiver as input using its respective antenna for each simulation cancellation module, inversely add as output using two-way input signal, by providing different two-way input signals for each simulation cancellation module, can be eliminate from the interference signal of specific antenna from the Received signal strength of specific antenna.
Further, when antenna is N root, all corresponding N number of simulation cancellation module of every root antenna, described device comprises N*N simulation cancellation module;
Simulation cancellation module C
mn, for using the Received signal strength of the transmitting chain coupled signal of antenna m and the receiver of antenna n as input, to eliminate the interference signal of antenna m to antenna n, wherein, m is 1,2 ..., N-1, N, n are 1,2 ..., N-1, N.
In the utility model embodiment, as shown in Figure 1, for the device having N root antenna, the simulation cancellation module group that every root antenna correspondence is made up of N number of simulation cancellation module, such as, for antenna 1, the simulation cancellation module of antenna 1 correspondence has C
11, C
21, C
31..., C
n1, wherein, simulation cancellation module C
11, for using the Received signal strength of the transmitting chain coupled signal of antenna 1 and the receiver of antenna 1 as input, to eliminate the self-interference signal of antenna 1; Simulation cancellation module C
21, C
31..., C
n1, for respectively by antenna 2, antenna 3 ..., the Received signal strength of the transmitting chain coupled signal of antenna N and the receiver of antenna 1 as input, to eliminate antenna 2 respectively, antenna 3 ..., antenna N is to the interference signal of antenna 1.
In the utility model embodiment, when device has N root antenna, whole device needs N*N to simulate cancellation module (C
11,c
21,, C
n1, C
12, C
22..., C
n2..., C
nN) simulation that forms eliminates array, eliminates by described simulation the interference signal that array can eliminate this N root antenna.
In the utility model embodiment, as shown in Figure 2, the work period of this device comprises: cycle of training and data transfer cycle, when the quantity of antenna is N, is divided into N number of training time slot each cycle of training, the corresponding antenna of each training time slot; In cycle of training, every root antenna is to train time slot for segmentation is in turn as dual-mode antenna transmitting-receiving training sequence, and in each training time slot, have and only have an antenna transmitting-receiving training sequence, other antennas receive only training sequence as reception antenna; At data transfer cycle, all antennas of described device are all at same frequency receiving and transmitting signal simultaneously.
Further, in the training time slot i that antenna i is corresponding, described radio frequency exchange module, also for opening simulation cancellation module C
in, and close simulation cancellation module C
jn, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j, and n is 1,2 ..., N-1, N.
In the utility model embodiment, by the open and close of each the simulation cancellation module of radio frequency exchange module controls in the different operating cycle, such as, in the training time slot 1 of antenna 1 correspondence, open simulation cancellation module C by radio frequency exchange module
11, C
12, C
13..., C
1N, and close other simulation cancellation modules C
21, C
22, C
23..., C
2N, C
31, C
32..., C
nN.
Further, in the training time slot i that antenna i is corresponding, described radio frequency exchange module, the Received signal strength also for the transmitting chain coupled signal of control antenna i and the receiver of antenna j enters simulation cancellation module C corresponding to antenna j
ij.Wherein, i is less than or equal to N, and j is less than or equal to N.
In the utility model embodiment, simulating cancellation module provide input signal by radio frequency exchange module controls in difference training time slot for each, such as, in the training time slot 1 of antenna 1 correspondence, is simulation cancellation module C by radio frequency exchange module
11, C
12, C
13..., C
1Nthere is provided respectively antenna 1, antenna 2 ... the Received signal strength of the receiver of antenna N, as a road input signal, provides the transmitting chain coupled signal of antenna 1 as another road input signal for above-mentioned module is unified.
Further, in the training time slot i that antenna i is corresponding, antenna i receives and dispatches training sequence, simulation cancellation module C
iithe self-interference obtaining antenna i eliminates parameter; The training sequence that antenna j reception antenna i sends, simulation cancellation module C
ijobtain the interference cancellation parameters of antenna i to antenna j, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j.
In the utility model embodiment, in cycle of training, all simulation cancellation modules obtain corresponding interference cancellation parameters, and such as, in the training time slot 1 of antenna 1 correspondence, training sequence received and dispatched by antenna 1, simulation cancellation module C
11the self-interference obtaining antenna 1 eliminates parameter; Other antennas 2, antenna 3 ..., the training sequence that antenna N reception antenna 1 sends, is in opening simulation cancellation module C
12, C
13..., C
1Nobtain antenna 1 pair of antenna 2 respectively, antenna 3 ..., the interference cancellation parameters of antenna N.In the training time slot of antenna 1 correspondence, antenna 2, antenna 3 ..., antenna N does not send training sequence, so antenna 1 is not subject to from antenna 2, and antenna 3 ..., the interference of antenna N.
Further, at data transfer cycle, described radio frequency exchange module, also for opening all simulation cancellation modules;
At data transfer cycle, described simulation cancellation module, also eliminate its own antenna self-interference signal for eliminating parameter according to the self-interference obtained in cycle of training, or eliminate the interference signal between this antenna and other antennas according to the interference cancellation parameters between the antenna obtained in cycle of training.
In the utility model embodiment, in data transmitting period, the mode of operation of every root antenna is identical, every root antenna can use identical frequency to carry out data input and data output simultaneously, and without the need to antenna field being divided transmitting antenna and reception antenna, all simulation cancellation modules are all opened, and eliminate the interference signal in the Received signal strength of the receiver of every root antenna according to the corresponding interference cancellation parameters that each simulation cancellation module obtains in cycle of training.
Further, at data transfer cycle, described radio frequency exchange module, the Received signal strength also for the transmitting chain coupled signal of control antenna n and the receiver of antenna i enters simulation cancellation module C corresponding to antenna i
ni, and receive simulation cancellation module C
nithe signal exported is for follow-up simulation cancellation module or directly export; Or,
Described radio frequency exchange module, the Received signal strength also for the receiver of control antenna i skips simulation cancellation module C corresponding to antenna j
nj, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j, and n is 1,2 ..., N-1, N.
In the utility model embodiment, described radio frequency exchange module is used for carrying out the process such as shunt, distribution and switch to all radio frequency links, described radio frequency exchange module comprises: the devices such as indicator light, golden finger interface, radio frequency interface, power splitter, mixer and radio-frequency (RF) switch are formed, the transmitting chain coupled signal of its respective antenna can be provided for each simulation cancellation module, and the Received signal strength that can control the receiver of its own antenna enters or skips and specifically simulates cancellation module, finally export the Received signal strength eliminating interference.
Such as, in the utility model embodiment, at data transfer cycle, for antenna 1, described radio frequency exchange module, the Received signal strength for the receiver of control antenna 1 enters the simulation cancellation module C of antenna 1 correspondence
11, C
21, C
31..., C
n1; Or, also for control antenna 1, antenna 2 ..., the transmitting chain coupled signal of antenna N enters the simulation cancellation module C of antenna 1 correspondence respectively
11, C
21, C
31..., C
n1; Or the Received signal strength also for the receiver of control antenna 1 skips antenna 2, antenna 3 ..., the simulation cancellation module C that antenna N is corresponding
12, C
22, C
32..., C
n2, C
13, C
23, C
33..., C
n3..., C
nN.
In the utility model embodiment, described control mainboard is the base plate of whole device, and described control mainboard comprises: power supply, indicator light, data-interface, button, programmable master control chip and golden finger slot.The operation of whole device all relies on the programmable master control chip controlling mainboard to carry out coordinating and controlling.Clock, switching signal and switch matrix that radio frequency exchange module sends according to programming main control chip are opened, are closed and specifically simulate cancellation module, and the Received signal strength access of transmitting chain coupled signal and receiver is specifically simulated cancellation module, elimination algorithm and data acquisition and the detection etc. of simulation cancellation module are all carried out in the main control chip controlling mainboard.
In the utility model embodiment, described radio frequency exchange module adopts pluggable plate card type to design, and is connected, for transmitting data, control signal and power supply between this radio frequency exchange module with control mainboard by the form of golden finger slot; Described simulation cancellation module adopts pluggable plate card type to design, and is connected, for transmitting data, control signal and power supply between this simulation cancellation module with control mainboard by golden finger slot form.
In the utility model embodiment, described control mainboard can provide sufficient golden finger slot, and described radio frequency exchange module can provide sufficient radio frequency interface.Like this, by modularization separate design, the quantity of antenna and simulation cancellation module can be adjusted neatly, thus can single antenna devices be applied to, also can be applied to multiple antennas (2,3, N) device, compared with the unitary design (control module is all fabricated in same circuit board with simulation cancellation module) of existing interference blanking unit, has stronger autgmentability and adaptability.
In the utility model embodiment, described radio frequency exchange module and described simulation cancellation module are all perpendicular to described control mainboard, the socket designs of this vertical angle can effectively reduce the real estate of this device, can solve the problem that board area that existing interference blanking unit integrated design causes is excessive.
In the utility model embodiment, be connected by RF cable between described radio frequency exchange module with simulation cancellation module, described radio frequency exchange module by described RF cable to simulating the pending Received signal strength of cancellation module transmitting link couples signal, receiver; Described simulation cancellation module exports to described radio frequency exchange module the Received signal strength eliminated after certain interference by described RF cable, finally, by described radio frequency exchange module, the Received signal strength eliminated after interference is exported to other equipment.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (9)
1. a Full-duplex wireless communications simulation self-interference cancellation element, is characterized in that, comprising: antenna, power splitter, circulator, radio frequency exchange module, simulation cancellation module and control mainboard;
Described antenna, for transmitting and Received signal strength;
Described power splitter, for when transmitting a signal, is divided into two-way by described transmitting, and by first via signal access radio frequency exchange module, the second road signal is launched by described antenna after described circulator;
Described circulator, for tentatively isolating the signal of transmitting chain and receiver, and is sent to described radio frequency exchange module by the signal that described antenna receives;
Described radio frequency exchange module, for sending the Received signal strength of the transmitting chain coupled signal of this simulation cancellation module respective antenna and the receiver of its own antenna to the simulation cancellation module of specifying, and receive signal that described simulation cancellation module exports for follow-up simulation cancellation module or directly export;
Described simulation cancellation module, for the Received signal strength of the transmitting chain coupled signal that will receive and receiver as input, eliminates the self-interference signal of its own antenna or the interference signal of other antennas to this antenna;
Described control mainboard, for connect described radio frequency exchange module with simulation cancellation module, and export control command to described radio frequency exchange module and simulation cancellation module control.
2. device according to claim 1, is characterized in that, when antenna is N root, and all corresponding N number of simulation cancellation module of every root antenna, described device comprises N*N simulation cancellation module;
Simulation cancellation module C
mn, for using the Received signal strength of the transmitting chain coupled signal of antenna m and the receiver of antenna n as input, to eliminate the interference signal of antenna m to antenna n, wherein, m is 1,2 ..., N-1, N, n are 1,2 ..., N-1, N.
3. device according to claim 1, is characterized in that, the work period of described device comprises: cycle of training and data transfer cycle;
When the quantity of antenna is N, comprise N number of training time slot each cycle of training, the corresponding antenna of each training time slot;
In cycle of training, every root antenna receives and dispatches training sequence to train time slot in turn for splitting, in each training time slot, have and only have an antenna transmitting-receiving training sequence, other antennas only received training sequence, wherein, receive and dispatch training sequence comprise: send training sequence and receive its own antenna send described training sequence;
At data transfer cycle, all antennas of described device are all at same frequency receiving and transmitting signal simultaneously.
4. device according to claim 3, is characterized in that, in the training time slot i that antenna i is corresponding, described radio frequency exchange module, also for opening simulation cancellation module C
in, and close simulation cancellation module C
jn, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j, and n is 1,2 ..., N-1, N.
5. device according to claim 3, it is characterized in that, in the training time slot i that antenna i is corresponding, described radio frequency exchange module, the Received signal strength also for the transmitting chain coupled signal of control antenna i and the receiver of antenna j enters simulation cancellation module C corresponding to antenna j
ij, wherein, i is less than or equal to N, and j is less than or equal to N.
6. device according to claim 4, is characterized in that, in the training time slot i that antenna i is corresponding, antenna i receives and dispatches training sequence, simulation cancellation module C
iithe self-interference obtaining antenna i eliminates parameter; The training sequence that antenna j reception antenna i sends, simulation cancellation module C
ijobtain the interference cancellation parameters of antenna i to antenna j, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j.
7. device according to claim 6, is characterized in that, at data transfer cycle, described radio frequency exchange module, also for opening all simulation cancellation modules;
At data transfer cycle, described simulation cancellation module, also eliminate its own antenna self-interference signal for eliminating parameter according to the self-interference obtained in cycle of training, or eliminate the interference signal between this antenna and other antennas according to the interference cancellation parameters between the antenna obtained in cycle of training.
8. device according to claim 3, is characterized in that, at data transfer cycle, described radio frequency exchange module, the Received signal strength also for the transmitting chain coupled signal of control antenna n and the receiver of antenna i enters simulation cancellation module C corresponding to antenna i
ni, and receive simulation cancellation module C
nithe signal exported is for follow-up simulation cancellation module or directly export; Or,
Described radio frequency exchange module, the Received signal strength also for the receiver of control antenna i skips simulation cancellation module C corresponding to antenna j
nj, wherein, i is less than or equal to N, and j is less than or equal to N, and i is not equal to j, and n is 1,2 ..., N-1, N.
9. device according to claim 8, is characterized in that, is connected between described radio frequency exchange module with described simulation cancellation module by RF cable;
Described radio frequency exchange module is perpendicular to described control mainboard; Or,
Described simulation cancellation module is perpendicular to described control mainboard.
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| CN201520834475.0U CN205071011U (en) | 2015-10-26 | 2015-10-26 | Simulation of full duplex radio communication is from interference elimination device |
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| CN201520834475.0U CN205071011U (en) | 2015-10-26 | 2015-10-26 | Simulation of full duplex radio communication is from interference elimination device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058464A (en) * | 2016-05-17 | 2016-10-26 | 深圳微迎智科技有限公司 | Adaptive antenna interference elimination apparatus, method and antenna array and communication device thereof |
| CN108233971A (en) * | 2016-12-14 | 2018-06-29 | 中国电信股份有限公司 | Full duplex compartment system and full duplex signaling transmission method |
| CN109713483A (en) * | 2019-02-12 | 2019-05-03 | 北京军科兴科技有限公司 | A kind of microwave perpendicular interconnection connected components |
| CN112543037A (en) * | 2019-09-20 | 2021-03-23 | 华为技术有限公司 | Communication equipment, radio frequency interference elimination method and device |
-
2015
- 2015-10-26 CN CN201520834475.0U patent/CN205071011U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058464A (en) * | 2016-05-17 | 2016-10-26 | 深圳微迎智科技有限公司 | Adaptive antenna interference elimination apparatus, method and antenna array and communication device thereof |
| CN106058464B (en) * | 2016-05-17 | 2018-12-14 | 深圳飞特尔科技有限公司 | Adaptive antenna interference blanking unit, method and its aerial array, communication equipment |
| CN108233971A (en) * | 2016-12-14 | 2018-06-29 | 中国电信股份有限公司 | Full duplex compartment system and full duplex signaling transmission method |
| CN108233971B (en) * | 2016-12-14 | 2020-07-24 | 中国电信股份有限公司 | Full-duplex distribution system and full-duplex signal transmission method |
| CN109713483A (en) * | 2019-02-12 | 2019-05-03 | 北京军科兴科技有限公司 | A kind of microwave perpendicular interconnection connected components |
| CN109713483B (en) * | 2019-02-12 | 2023-10-31 | 北京军科兴科技有限公司 | Microwave vertical interconnecting assembly |
| CN112543037A (en) * | 2019-09-20 | 2021-03-23 | 华为技术有限公司 | Communication equipment, radio frequency interference elimination method and device |
| CN112543037B (en) * | 2019-09-20 | 2022-05-24 | 华为技术有限公司 | Communication equipment, radio frequency interference elimination method and device |
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